Hi,
I don't think the Norton Security Scan will remove malware, I could be wrong but I think it will only detect malware. You would most likely be prompted to install NAV, NIS or NPE.
NPE does not install but it is prone to false positives - use it carefully.
I agree with Dick that you would be best to sign up for help from one of the free malware removal sites. They will ensure the system is completely clean of all traces of the malware and will remove any tools used in the cleanup process.